mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-02-21 06:30:16 +00:00
074e489dbc
Match reductions starting at binary operation feeding into a phi. The code handles trees like r += v1 + v2 + v3 ... and r += v1 r += v2 ... and r *= v1 + v2 + ... We currently only handle associative operations (add, fadd fast). The code can now also handle reductions feeding into stores. a[i] = v1 + v2 + v3 + ... The code is currently disabled behind the flag "-slp-vectorize-hor". The cost model for most architectures is not there yet. I found one opportunity of a horizontal reduction feeding a phi in TSVC (LoopRerolling-flt) and there are several opportunities where reductions feed into stores. radar://14607682 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191108 91177308-0d34-0410-b5e6-96231b3b80d8
Low Level Virtual Machine (LLVM) ================================ This directory and its subdirectories contain source code for the Low Level Virtual Machine, a toolkit for the construction of highly optimized compilers, optimizers, and runtime environments. LLVM is open source software. You may freely distribute it under the terms of the license agreement found in LICENSE.txt. Please see the documentation provided in docs/ for further assistance with LLVM, and in particular docs/GettingStarted.rst for getting started with LLVM and docs/README.txt for an overview of LLVM's documentation setup. If you're writing a package for LLVM, see docs/Packaging.rst for our suggestions.